Broiler reflector shield



Feb. 9, 1954 J. E. CHAMBERS BROILER REFLECTOR SH IELD 2 Sheets-Sheet lFiled Oct. 18, 1948 INVENTOR. BY L @mdf/mf. Mada" om/W' ono oo J. E.CHAMBERS BROILER REFLECTOR SHIELD Feb. 9, 1954 2 Sheets-Sheet 2 FiledOct. 18, 1948 INV NTO Patented Feb. 9, 1954 BRoILER REFLEoToR SHIELDJohn E. Chambers, Shelbyville, Ind., assignor to Chambers Corporation,

diana a j corporation of In- Application October 18, 1948, Serial No.55,093

2 claims. 1

This invention relates to a reiiector shield for a burner used with acombination broiler and griddle.

In gas ranges embodying al combination Ybroiler and griddle, such as isdisclosed in my prior Patent No. 2,011,848, it has been found that aburner of sufficient capacity to properly heat the broiler will furnishtoo much heat for the `griddle when the burner is adjusted for properheating of the broiler. For this reason it is difcult to use the broilerand the griddle simultaneously with completely satisfactory results.

In accordance with the present invention satisfactory simultaneous useof the broiler and griddle is made possible by means of a reector shieldwhich is secured to the burner in a posivtion directly above the burner,about half way between the burner and griddle. The reiiector shielddirects most of the heat from the burner downwardly towards the broilerand at the same time acts as a barrier against free transmission of heatupwardly by tending to blanket the heat directly above the burner.

The reflector shield is provided with a plurality of apertures whichpermit the transmission of some of the heat from the burner to thegriddle and also the escape of the burned gases .that might otherwisesmother the flame. The number and size of the apertures in the reiiectorshield are fixed to allow a predetermined pro-A portion of the totalheat from the burner to reach the griddle. Other factors aecting thedistribution of heat between the broiler and griddle, such as theposition ofthe reflector shield and the burner relative to each otherand to the broiler and griddle, may be kept reasonably'constant bymeansof suitable spacers. The spacers are provided with insulated lockingmeans to hold the reflector in place while permittingV expansion andcontraction of the reflector. The proper distribution of heat from theburner between the broiler and the griddle makes it possible to use thebroiler and griddle simultaneously in an efficient manner. A

VIVAnother important advantage of thev present invention is the savingin gas consumption brought about by the action of the reiiector shieldin blanketing the heat above the' broiler. By directing most of the heatfrom the burner downwardly towards the broiler, the reflector shieldreduces the amount of heat which would otherwise escape around the edgesof the griddle or would be transmitted to parts of the range adjacentthe broiler or the griddle. Thus in accordance with the' presentinvention a inin- 2 imum of the heat supplied to the broiler is wastedand surrounding articles are not injuriously aiected by such heat as maybe Wasted.

The structure by which the above advantages are attained will bedescribed in the following specication, taken in conjunction with theaccompanying drawings,inwhich:

Figure 1 is a fragmentary perspective view y'of a gas range embodyingthe invention, showing the position of the combinationV broiler andgriddle relative to the rest of therange structure;

Fig. 2 is a longitudinal sectional view,A taken along the line 2 2 ofFig. 1, showing the relativepositions of the boiler, burner yandreflector shield when the griddle is in the position it occupies when inuse Fig. 3 is a cross sectional view, taken along the line 3 3 of Fig.2;

Fig. 4 is a plan View, taken generally along the line 4 4 of Fig. 2,with parts of the griddleand reiiector shield broken away to facilitateillustration of the structure; f

Fig. 5 is a fragmentary side elevation,`taken through the broiler box,showing the griddle, burner and reflector shield in raised position;

Fig. 6 is a detail sectional view, showing the means for spacing thereiiector shield from the griddle; and

Fig. 7 is a detail'perspective view of the reector shield.

In the drawings, the reference numeralZ indicates a gas range providedwith a broiler box .3 having an open top registering with an opening inthe top surface of the range. Broiler box 3 comprises side walls 4 and5, end walls 6 and 1, and a bottom wall 8. End wall 6 is provided with aflue opening 6 for the escape of burned gases. lSuitable insulation maybe provided around the sides and'bottom of broiler box 3 to minimize theloss of heat by transmission throughits walls to the surrounding area. Abroiler pan 9 is removy ably supported on a pair of yokes I0 havingtheir endsv pivotally mounted in side walls Il and 5, as indicated at II.

A griddle I2 iitting over the opening in the top surface of the rangeserves as a closure for'the open top of broiler box 3. As shown in Figs.2, 4 and 5, a burner I 3, which supports the griddle, is rotatablymounted within the broiler box, as by a stub shaft I4 and an arm I 5integral Vwith the burner. One end of shaft I4 is rigidly' secured toarm I5 and the free end ofthe shaft is rotatably supported by side wall4. Ann l5 isl hollowand is in communication with the interior of the'burner and a source of `gas supply. Arm` may be engaged by a nger I8depending from v the under side of griddle l2.

The interengagement of finger I8 and rod I'I causes burner I3 andgriddle I2 to act as a unit when shaft I4 and arm I5 are rotated. Theend of burner I3 remote from arm I5 is raised, and griddle I2 is raisedwith the burner, to provide access to broiler pan 9. Preferably yokes I0are connected by a suitable linkage (not shown) to shaft I4 so that whenthe griddle and burner are raised, as shown in Fig. 5, broiler pan 9 isalso raised to bring it close to the top of 'broiler` box 3 and therebymade more readily accessible. Griddle I2 may be separated from burner i3Vquickly and readily by sliding it laterally (as viewed in Fig. 2) todisengage finger I8 from 'rod I'I.

Burner I3 is provided with a plurality of bosses I9 projecting upwardlyfrom the top surface of the burner, as shown in Fig. 6. Each boss I9 isprovided with a threaded recess 20 extending vertically from its topsurface. A reflector shield 2| is positioned on bosses is and is spacedfrom burner I3 by the bosses. An aperture 22, larger than aperture 2li,is provided in the reflector shield in registration with each aperture20. The difference in the size of apertures 22 and 20 is designed toprovide reflector shield 2| with clearance around each of a plurality ofscrews 23 which are threaded into apertures 20. The heads cf screws 23engage the undersurface of griddle I2 to keep all parte of it spaceduniformly above burner I3.

An inverted cup shaped member 24 iilled with insulating material 25,such as asbestos, for example, is positioned above each aperture 22 andis held against reflector shield 2I by means of a nut 2S threaded onscrew 23. Nuts 26 insure that reflector shield 2| will be maintainedpropl erly spaced from griddle I2. The insulating material 25 allowsslippage of the reflector relative to the burner, without buckling,during expension and contraction of the reiiector. rlhe reflector.shield is so close to burner I3 that it is subjected to considerableheat when burner I3 is lighted. The clearance provided by apertures 22around screws 23 protects the reflector shield from excessive strain towhich it would otherwise be subjected by the expansion and contractionincidental to the rapid heating and cooling of the reflector shieldwhenever burner I3 is lighted or turned o.

Reflector shield 2I is made of metal, suitably a tarnish resistantmetal, such as stainless steel, for example, so as to confine the nameand provide maximum reection of heat. The refiector shield is shaped soas to cover the top of burner I3 and extend beyond the burnerapproximately two inches in each direction. A cut out 21 is provided inthe surface of reiiector shield 2I to fit around lugs IG and rod II andto provide suiiicient clearance so that finger I8 may be readily engagedwith or disengaged from rod I1.

The edges 28 of reflector shield 2I are curved downwardly to form aninverted disk which serves as a pocket for the convected heat and reectsthe radiant heat downwardly over the entire broiler surface. Apertures29 of sufficient number and size are provided in the top of thereflector shield to allow a predetermined proportion of the heat fromburner I3 to rise upwardly readily to heat griddle I2. The total crosssection area of apertures 29 is such that when burner I3 is heatingbroiler pan 9 within the proper range of temperature for eiiicientbroiling, enough heat will rise up through apertures 29 to heat griddleI2 to proper temperature for its use. Apertures 23 also permit theescape of burned gases which might otherwise smother 'the flame.

Another factor in the proper heating of griddle I2 is the distanceintervening between burner i3 and the griddle. This distance may becontrolled by screws 23 upon the heads of which griddle I2 rests. Themain purpose of these screws, however, is to provide a support for thegriddle so that it will not sag under the influence of heat. Finger I8,which is engaged around rod I'I, actually spaces one end of the griddlefrom burner I3. The opposite end of griddle i2 has a boss 30 whichengages a plate 3I projecting from arm I5. and integral therewith, andthereby spaces the other end of the griddle from the burner.

From the foregoing description it will be seen that the reflector shieldincreases the eiciency of a combination broiler and griddle in severalways. The shape of the reflector shield concentrates the flame and themajor portion of the heat from the burner around the broiler pan, whereit is required, and allows only a controlled small proportion of theheat to be directed against the griddle so that the griddle may be usedsimultaneously with the broiler without waste of heat. The reflectorshield also blankets the heat around the broiler pan. In consequence,less gas is consumed in heating the broiler pan because the heat that isdirected to the broiler pan is not immediately dissipated.

While I have described a preferred embodiment of my invention inconsiderable detail, it will be understood that the description isintended to be illustrative, rather than restrictive, as many detailsmay be modified or changed without departing from the spirit or scope ofthe invention. Accordingly, I do not desire to be limited to the exactstructure described.

I claim:

1. In combination with a broiler, a gas burner positioned adjacent thetop of said broiler, a griddle positioned above said burner, a pluralityof spacing elements extending upwardly from said burner into engagementwith the underside of said griddle, and a reflector shield iixed betweensaid burner and said griddle in predetermined spaced relationship, saidshield overlying and surrounding said burner and being apertured todistribute the heat directed towards it by said burner in predeterminedproportions between said broiler and said griddle, each edge of saidreilector shield being turned downwardly to prevent escape of heataround the edges of said reflector shield.

2. In combination with a broiler, a gas burner positioned adjacent thetop of said broiler, a griddle positioned above said burner, a reiiectorshield fixed between said burner and said griddle in predeterminedspaced relationship, said References Cited in the file of this patentshield overlying and surrounding said burner and TENT being apertured todistribute the heat directed UNITED STATES PA s towards it by saidburner in predetermined pro- Number Name Date portions between saidbroiler and said griddle, 5 461,953 Edmonds 00t- 27, 1891 and means foradjusting the vertical position of 824,477 Ganda' June 26 1906 saidgriddle relative to said reector shield rto 1,715,617 Parker June 4,1929 facilitate eentrel of the quantity ef heat applied 2,011,848Chambers Alle 20, 1935 to said griddle while said broiler is beingheated. 2,164,079 Parker June 27, 1939 10 2,205,435 Raber June 25, 1940JOHN E' CHAMBERS. 2,235,836 Kahn Mar. 25, 1941 2,430,848 Schneider NOV.11, 1947

